Hand-tool.



C. W. BLUDGIE.

HAND TOOL. APPLICATION man JAN. 12. 1915.

1 ,206, 1 99 Patented Nov. 28, 1916.

FETERS cow. PNDTO-LITHOH w4sumcmr4, n. c.

approach each other at the same time. Similarly, when the jaws 10, 11 are separated by the actuation of the lever handles 12, 13, the subsidiary jaws 20, 21 will likewise be separated.

In accordance with the present invention one pair of jaws is adjustable relatively to the other pair, so that if desired the tool may be so adjusted that both pairs of jaws will be completely closed together at the same moment, even in case one or both pairs of jaws have become considerably worn by use, or have been consider-ably ground away by sharpening or otherwise. In the form shown the pivoted subsidiary jaw 21 is adjustable relatively to its cooperating jaw 20 and relatively to the main aws 10, 11. To this end one of the pivotal points of support of the jaw 21 is adjustable relatively to the lever handles and to the main jaws. In the example shown the pivot screw 15 for pivoting the rear end of jaw 21 is mounted eccentrically in an adjustable carrier 24, which can be turned on an axis coincident with the pivot of the levers 12, 13. The carrier 21 is preferably in the form of a disk or cam having an eecentrically located perforation or hearing 25 for the pivot screw 15. The body portion of the carrier 2st is of cylindrical form and fits within a corresponding recess 27 in the overlapping arm or plate portions 12, 13 of the levers 12, 13 at one side of the tool. The plate portion 12 of lever 12 and the adjusting plate portion 13 of lever 13 are provided with registering perforations creating the recess or socket 27, in which the body of the carrier is inserted for turning movement. The pivot screw 15 has a smooth cylindrical bearing portion 15", fitting the eccentric perforation or bearing 25 in the member 2a and at its inner extremity the threaded shank 15 of the screw is screwed in the usual manner into a tapped opening 28 in the subsidiary jaw 21. At its outer part the member 2 1 is provided with a lateral flange 26 overlying the opening in the plate portion 12 and provided with one or more notches 27 By the construction described it will be apparent that the carrier or cam 2i may be turned on its axis within the socket 27 by engaging a screw-driver, spanner or like.

tool, with the notches 27*. It will also be observed that inasmuch as the screw 15 is eccentrically located with respect to the carrier the screw will be displaced relative to the handles as the carrier is turned on its axis. By referring to Figs. 1 and 3', it will be noted that by turning the carrier or cam 24 on its axis the pivot screw 15"* may be raised and lowered relatively to the tool so as to move the jaw 21 (pivoted to the screw) closer to or farther away from its cooperating jaw 20.

character leaves the factory both pairs of jaws should close together perfectly. In other words, when the plier jaws 10, 11 are in light contact the cutting edges 22, 23 of the subsidiary jaws 20, 21 ought to be in li ht contact. Supposing that the cutting edges 22, are worn away by constant use and are re-sharpened along the dotted lines in Fig. 2, it will be evident that the proper adjustment of the two pairs of jaws relative to each other is no longer maintained. I can provide this adjustment, however, by the construction herein described, in which it is merely necessary to turn the cam or carrier in such a direction as to approach the pivot member 15 toward the jaw 10 to a slight extent, thereby bringing the cutting edges of the subsidiary jaws again into contact when the main jaws are brought into contact as shown in Fig. 3. Thus the adjustable carrier for the pivot member 15 permits the subsidiary jaws to be brought fully together even after they have been considerably worn. On the other hand, if it is found that the subsidiary jaws meet each other before the main jaws are closed the cam or carrier is turned in such a direction as to permit the subsidiary jaws to move away from each other to the required extent. In the form shown, the member 24 forms the pivot proper for the lever handles at one side of the tool, although the screw 15 or its equivalent is necessary to hold said member in place and to form the complete pivot device 15 hereinbefore mentioned. The screw 15 forms a pivot for the aw 21, and obviously it is adjustable with respect to the pivot member for the handles when the latter member is turned on its axis, as hereinbefore described.

It will be apparent that the construction is quite simple and that the tool can be readily assembled. Of course it is not always necessary to use the adjusting mechanism for closing all the various jaws at the same time, because in some cases it might be desired to close one pair of jaws before the jaws of another pair came into full contact with each other.

I have only shown and described one embodiment of my invention, but it will be understood that the invention is susceptible of numerous other embodiments within the scope of the claims.

What I claim is:

1. In a hand tool, a pair of parallel jaws, a pair of lever handles for operating said jaws, a pivoted subsidiary jaw cooperating.

with one of said parallel jaws, means for operating said subsidiary jaw from said lever handles concurrently with the parallel jaws, and means for adjusting said subsidiary jaw relatively to said parallel jaws; sub-- stantially as described.

2. In a hand tool, the combination of a pair of parallel aws, one ofv said jaws having a subsidiary jaw thereon, a pivoted subsidlary aw, a palr of lever handles for closing all of said jaws, and means for adjusting pair of parallel jaws, a pair of crossed lever handles, means for pivoting said lever handles at the point where they intersect, means for pivoting the forward ends of the lever handles to said parallel jaws, means guiding said jaws for parallel movement, and a subsidiaryjaw pivoted coincidently with one of said parallel jaws, said subsidiary jaw being also pivoted adjacent the pivot of the lever handles but adjustable relatively to said pivot; substantially as described.

I, In a hand tool, a pair of parallel jaws, a pivoted subsidiary jaw, a pair of lever handles for operating all of said jaws, and means for adjusting the pivoted subsidiary jaw relatively to the parallel jaws; substantially as described.

5. In a hand tool, a pair of jaws, a pair of operating lever handles for said jaws adapted to give the latter a parallel closing movement, a pivot for said lever handles, pivots connecting the respective lever handles with the respective jaws, a pivoted subsidiary jaw supported on one of said last named pivots and on the pivot of the lever handles and means for mounting said subsidiary jaw adjustably relatively to one of said pivots; substantially as described.

6. In a hand tool, a :pair of main jaws, a pair of operating lever handles for said jaws, connections between said handlesand said jaws for giving the latter a parallel movement, including pivots connecting the forward extremities of the respective handles with the respective jaws, a pivot, connecting the lever handles, a subsidiary aw mounted on said last named pivot, and also on one of said first named pivots, and'means for adjusting said subsidiary jaw relatively to the pivot interconnecting the handles; substantially as described. 7 i

'7. In a handtool, the combination of a pair of crossed lever handles, a pivot memher for said handles by which they are pivoted together, a jaw pivoted to one of said lever handlesat one side of said pivot memben and slidable relatively to' the other handle at the other side of said pivot mem ber, a swlnging aw to cooperate wlth the first jaw pivoted coincidently with said first jaw, and means to pivot said swinging jaw to the pivot member of said lever handles, said last-named means adjustable to shift said swinging jaw relatively to said pivot member; substantially as described.

8. In a hand tool, the combination of a pair of parallel aws, a pair of lever handles having forked portions crossing each other and pivoted to the respective parallel jaws, means guiding said jaws for parallel movement, the forked'portions of said levers having registered openings at one side of the tool, a pivot member for said lever handles,

engaging said openings, and adapted to be turned therein, a swinglng subsidiary jaw pivoted coincidently with one of said parallel jaws, and a pivot member for'said subsidiary jaw having an eccentric bearing in said first named pivot member; substantially as described. 7

In witness whereof, I have hereunto set my hand on the 8th day of January, 1915. CHARLES W. BLODGIE.

itnesses V EUGENE L. Race, 7 IVILLIAM N. GATES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

' Washington, D. C. 

